baber/WOPTO huggingface dataset:
Patent GB-1411544-A (GB)
Title: Retracting inflatable seals
IPC: F16J15/46
Filed: 1971-10-30
Abstract: 1411544 Creating vacuum; piston discharge apparatus DUNLOP Ltd 25 Oct 1972 [30 Oct 1971] 50556/71 Headings F1N and F1R After a gas or liquid filled inflatable seal 10 has been exhausted to atmosphere by opening valves 3, 4 it is partially evacuated, evacuation being performed by closing the valve 3 and opening a valve 5, the latter causing exhaustion of a chamber 17 which allows a spring 19 to displace a piston or flexible diaphragm 13 and thus suck fluid from the seal into the opposed chamber 18. The chamber 17 is filled with pressurized fluid during inflation of the seal 10. To inflate the seal, valves 1, 2 are opened and valves 4, 5 are closed. This allows fluid from a source 11 to enter the seal and also the chamber 17 whereby to displace the piston or diaphragm against the force of the spring 19. The spring 19 may be a constant force or stiffness tension or compression spring and may be replaced by an air spring or by the flexibility of the diaphragm.
Patent GB-1485399-A (GB)
Title: Internal-combustion engines
IPC: F02B23/08
Filed: 1974-11-22
Abstract: 1485399 IC engine combustion chambers A FUNICIELLO 22 Nov 1974 [30 Nov 1973 19 June 1974] 50926/74 Heading F1B An internal combustion engine has co-operable surfaces 116, 117 on the stationary walls of the variable volume chamber and on piston 103 respectively, so arranged that just before the chamber reaches its minimum volume a barrier is formed dividing the volume into two compartments which intercommunicate for at least part of the time that surfaces 116, 117 co-operate, the barrier being interposed between induction and exhaust valves 104, 105 to thereby extend the distance of gas travel between the valves. The cylinder head 101 and piston 103 are provided with concavities 112, 113 co-operating to define a chamber 111  adjacent sparking plug 115. The latter is ignited during the compression stroke, prior to surfaces 116, 117 co-operating to form the barrier, causing the mixture in chamber 111 to burn and follow a path F around the barrier into the main combustion chamber 110 defined by recesses 108, 109. Stagnation zones and direct communication between inlet and outlet valves 104, 105 are thus prevented. A notch or hole (120, 121) Fig. 7 (not shown) may be provided in the barrier to extend the period of direct communication between chambers 110, 111. The barrier surfaces 116, 117 may be coated with a heat-resistant asbestos or carbon based paint which is abraded during initial running of the engine to form a good gas seal. Modified forms of barrier, combustion chamber and sparking plug position are described. The invention is applicable to rotary as well as reciprocating engines.
Patent GB-1369058-A (GB)
Title: Preparation of cyclic adenosine monophosphate
IPC: C07H19/20
Filed: 1971-11-02
Abstract: 1369058 Preparing cyclic adenosine monophosphate KYOWA HAKKO KOGYO KK 2 Nov 1971 [2 Nov 1970] 50941/71 Heading C2P Cyclic adenosine-2<SP>1</SP>,3<SP>1</SP>-monophosphate is obtained by treating an adenosine phosphate, e.g. the mono-, di- or tri-phosphate, with an adenyl cyclase in the presence of a chelating agent. The adenyl cyclase may be used in the form of a microbial cell suspension, e.g. in the form of a substrate prepared by culturing in a nutrient medium therefor a micro-organism having an adenylcyclase activity, especially a microorganism selected from the genera Brevibacteria and Escherichia. Specified chelating agents are ethylenediamine tetraacetic acid, cyclohexanediaminetetraacetic acid, nitrilotriacetic acid, and hydroxyethylethylenediaminetriacetic acid. The reaction is preferably effected at pH 4À0- 8-0 and at 35-45‹ C.
Patent GB-1490518-A (GB)
Title: Fluidised bed apparatus
IPC: B01J8/26
Filed: 1973-11-02
Abstract: 1490518 Fluidised bed apparatus EVINSON WHITE Ltd 22 Jan 1975 [2 Nov 1973] 51032/73 Heading B1F(Also in Division F4] Apparatus for heating particulate solids has an upper fluidised bed with base 5, 10 whose length is at least twice its width and a lower fluidised bed with base 14 also whose length is at least twice its width. Solids from the hopper 4 are supplied to the bed 6 over substantially the whole width of the bed and pass down the chute 8 to the bed 9. Solids are supplied over substantially the whole of the width of the bed 13 from bed 9 via the chute 12 and pass to bed 15 and finally over the weir 16 into a product removal duct 20 and leave the apparatus at 21. Fresh air entering the duct 22 cools the solids in duct 20 and is preheated to supply the combustion air for the oil or gas burner 24. Hot gases from a burner pass through heat exchange pipes 33 and 35 before leaving the apparatus at 36. Fluidising gases from the fan 29 pass to the bed 15 and are heated by the heat exchange pipes 33 before passing on to fluidise and heat the bed 6. Similarly fluidising gases from the fan 30 pass to the beds 13 and 9 and are heated by the heat exchange pipes 33 and 35. Gases leaving the beds 6 and 9 pass to a separator 27 before recycling to the fans 29 and 30. Alternatively gases from the separator 27 may pass to a heat exchanger for preheating fresh fluidising gas to be fed to the fans 29 and 30. In this case the gases from the separator 27 are discharged after passing through the heat exchanger. Excess gases resulting from thermal dissociation processes, such as calcination of calcium carbonate may be bled off at 38. The bases of the fluidised beds may have valves openable by an upward gas pressure Fig. 3 (not shown). In a modified version of the apparatus Fig. 2 (not shown) the heat exchange gases are recycled as fluidising gases.
Patent GB-1135944-A (GB)
Title: Cutting tools
Inventor: WELCH JOHN
IPC: B23B27/16
Filed: 1964-12-15
Abstract: 1,135,944. Cutting tools. ROLLS-ROYCE Ltd. 7 Dec., 1965 [15 Dec., 1964], No. 51049/64. Headings B3B, B3C and B3K. In a cutting tool of the type having a holder 16 and a flat polygonal insert 6, the insert has opposed sides 6A, 6B and a plurality of edge faces each including at least one cutting edge 9 and is insertable in a recess in the holder having a base 22 and two inwardly inclined side walls 23 and 24 which co-operate with one of the sides and at least part of each of two edge faces when the insert is located in the recess. In the embodiment described the end portions 7 and 8 of each side face are inclined to one another so that one end portion forms an angle of less than 90 degrees with one of the sides and the other end portion forms an angle of less than 90 degrees with the other side of the insert. The seating recess for the insert has its side walls which co-operate with the insert inclined inwardly to overhang the respective edge face and which gives an area contact over one part of each edge face and line contact over the other part of each edge face. The cutting tool described may be used for turning, boring and milling.
Patent GB-1193936-A (GB)
Title: Stretching an Upper about a Last
Inventor: KAMBORIAN JACOB SIMON
IPC: A43D63/00
Filed: 1968-10-29
Abstract: 1,193,936. Boots &c. J. S. KAMBORIAN. 29 Oct., 1968 [17 Nov., 1967], No. 51186/68. Heading A3B. In lasting a shoe the last 156 is supported in a lasting machine by a last pin 112 at its heel end and by a toe rest 92 at its forepart, and is held in position by a hold-down 136 which is locked against upward movement and which applies a downward force which is insufficient to bind the forepart of the upper 160 against the toe rest 92 so that the upper 160 can shift between the last 156 and toe rest 92 when it is stretched by the grippers 163. As described the heel seat lasting machine described in Specification Nos. 1,142,128 and 1,040,222 is provided with a modified toe supporting the upper stretching unit. This unit is mounted in a frame 28 (Fig. 2) carried by a support plate 26. The toe rest 92 is carried by a column 88 which is fixed by bolts 80 to frame members 30, 31. A carriage 36 can slide lengthwise of the shoe along the frame members 30, 31 under the action of air motors 38. The carriage 36 includes guides 56 (Figs. 2, 6) for a vertical slide 66 which can be raised by an air motor 74. The slide 66 carries a bar 94 on which the grippers 103 (Fig. 7) are mounted. The frame 28 also includes a housing 114 for the hold-down assembly. The hold-down 136 is pivoted by a pin 138 to a holder 134 which is adjustably mounted on a carrier 126. The carrier 126 is guided for movement by rollers (not shown) on the carrier 126 which engage cam slots 116, 118 in the housing 114. The carrier 126 is connected by a link 132 to a block 125 on the piston rod 124 of an air motor 120. The air line (not shown) to the motor 120 includes a low pressure regulator which is adjusted so that motor exerts a force insufficient to bind the upper between the hold-down 136 and toe rest 92. The toe rest 136 is locked against upward movement by a locking pawl 142 which is operated by an air motor 148 and which has teeth 144 which engage teeth 140 on the block 125 when the hold-down 136 is in its operative position. The machine has an automatic control circuit which operates as follows:- the operator places the shoe assembly in the machine with the lasting margin between the jaws of the grippers 103 and starts the machine. The jaws of the grippers 103 close and the hold-down 136 moves to its operative position and is locked against upward movement. The motors 38 and 74 are then operated to shift the grippers 103 forwardly and upwardly to stretch the upper about the last. A flow control valve in the air line to the motor 74 causes the grippers 103 to be moved forwardly at a faster rate than they are raised. During the stretching of the upper it can shift between the last 156 and toe rest 92 as indicated by the arrow 198 (Fig. 10A). The machine then completes its cycle as described in the Specifications.
Patent GB-1441880-A (GB)
Title: Process for producing fatty acid esters
IPC: C07C51/00
Filed: 1974-11-26
Abstract: 1441880 Fatty acid esters of pentaerythritol and 1,1,1-tri(hydroxymethyl)propane AJINOMOTO CO Inc 26 Nov 1974 [29 Nov 1973] 51244/74 Heading C2C A process for producing an ester of one or more fatty acids from an oxidate produced by reacting at least one paraffin with gaseous oxygen in the presnce of a catalyst, the oxidate comprising the one or more fatty acids and unreacted paraffin(s), comprises holding a mixture of the oxidate and at least one polyhydric alcohol selected from pentaerythritol and 1,1,1 - tri(hydroxymethyl)propane at a temperature above the boiling point of water until the one or more fatty acids react with the polyhydric alcohol to form one or more fatty acid esters of the polyhydric alcohol.
Patent GB-1082987-A (GB)
Title: Improvements in or relating to a method of tapping blind holes
Inventor: BARTELS THEODOR
IPC: B23G7/00
Filed: 1964-12-17
Abstract: 1,082,987. Tapping. ERNST SCHLIEMANN'S EXPORT-CERESIN-FABRIK. Dec. 17, 1964, No. 51382/64. Heading B3N. A method of tapping blind holes comprises first filling the hole with a mass of material of wax-like consistency, consisting of a low-watercontent soda soap with the addition of glycerine or glycol, and then carrying out the tapping operation. The material may be fed into the drilled hole in the form of a cartridge, or it may be used in belts or threads, the threads being cut off flush with the surface of the material. The method can be used for tapping cast iron, wrought iron, steel, copper, brass, bronze, aluminium, ferro-manganese, light alloys, precious metals, plexiglass, and moulded or extruded plastics.
Patent GB-1147340-A (GB)
Title: Improvements in or relating to methods of producing resistance elements and elements produced thereby
Inventor: JEANES RONALD VICTOR
IPC: H01C17/08
Filed: 1965-12-07
Abstract: 1,147,340. Resistors. ASSOCIATED SEMICONDUCTOR MFRS. Ltd. 2 March, 1967 [7 Dec., 1965], No. 51834/65. Heading H1S. [Also in Division C7] During fabrication of a thin film resistance element by deposition of oxidized nickelchromium in layers in a vacuum chamber, the ageing characteristics of the element are predetermined by controlling the partial pressure of oxygen in the chamber during deposition, thereby controlling the degree of oxidation of each layer. Clean substrates are mounted in holes in a wheel 11 in the evaporation chamber 1. To obtain a zero ageing characteristic the evaporation chamber is rough-pumped for six minutes, the cooling water supply is turned on and the pressure reduced to 1 x 10<SP>-5</SP> torr in less than 35 minutes. The mass spectrometer 21 is tuned to indicate the oxygen partial pressure. Substrate heaters are switched on and as soon as the oxygen partial pressure drops to the control pressure (8 x 10<SP>-8</SP> torr) the servo valve 9 linked to the mass spectrometer is switched on and bleeds oxygen into the system to maintain a constant oxygen partial pressure. When the substrate temperature has been maintained at 200‹ C. for 10 minutes, " Nichrome " (Registered Trade Mark) filaments 15 are heated and the shutter 16 opened after a 2-minute preheat. The shutter is closed when the desired thickness of resistor material has been deposited as shown by the resistance of the film deposited on a monitor slide achieving the desired value. The resistance layer contains between 40 and 50% chromium by weight. The desired shape and resistance value is obtained by a photo-resist process using selective etchants, or a suitable mask while depositing the film.
Patent GB-1069530-A (GB)
Title: Linefinder
Inventor: BOSTON GEORGE LOUIS
IPC: H04Q3/00
Filed: 1964-12-21
Abstract: 1,069,530. Automatic exchange systems. REDDIFITTERS Ltd. Dec. 10, 1965 [Dec. 21, 1964], No. 51925/64. Heading H4K. In a line finder arrangement, when a line 1, 2 is looped the current flow through resistors R 1 , R 2 , R 3  changes the potential at point 4 and allows current to flow through diode 5 to activate a transistor T1 and energize start relay ST. An allotted finder rotates until the calling line is reached whereupon current flows through a diode 13 similar to 5, a transistor T2 conducts and relay A energizes to stop the finder and to advance the allotter 9.
Patent GB-1298077-A (GB)
Title: Improvements in or relating to telephone subscribers' sets
Inventor: BENSON DAVID LIVINGSTONE
IPC: H04M1/31
Filed: 1969-10-23
Abstract: 1298077 Substation apparatus POST OFFICE 23 Oct 1970 [23 Oct 1969] 51995/69 Heading H4K A push-button telephone subscribers set the keyboard is normally coupled to a first type of dial signal generator adapted to co-operate with the local automatic exchange and can be switched to control a second generator once a connection is established. As described the keyboard is coupled to an electronic stronger pulse generator and can be switched to control a generator of multi-frequency dial type to transmit digital data to a remote station to which a connection has been established under control of the stronger pulse generator. The keyboard is automatically switched to control the stronger generator when the handset is replaced.
Patent GB-1445669-A (GB)
Title: Shaving and burnishing of passages in workpieces
IPC: B23D77/04
Filed: 1974-12-03
Abstract: 1445669 Rolling; boring heads MADISON INDUSTRIES GmbH 3 Dec 1974 [18 Dec 1973] 52208/74 Headings B3M and B3C A tool for shaving the internal surface 1 of a workpiece comprises a shaving head 2 and a rolling head 3 with a set of tapered rollers 14 in a cage 9. The rollers engage the workpiece surface automatically on the return stroke of the tool. The shaving head has a cutter blade 6 in a holder 5 and is removed from the head after the forward stroke so that only rolling occurs on the return stroke. Fluid such as oil is directed axially of the tool during shaving to remove chips. The rollers engage a cone 8 fixed on a shaft 7 so as to be moved radially to engage the workpiece surface upon retraction of the tool. The tool has a shaft 7 for mounting the heads 2, 3 and the shaft may be two-part (7a), (7b), Fig. 3 (not shown), to enable roller changing.
Patent GB-1308163-A (GB)
Title: Aqueous pigment dispersions
IPC: D06P1/613
Filed: 1970-11-03
Abstract: 1308163 Aq. pigment dispersions BAYER AG 3 Nov 1970 [3 Nov 1969] 52214/70 Heading D1B Aqueous pigment dispersions contain an alkali metal salt, ammonium salt or amine salt of a polyether carboxylic acid of the general formula: wherein R is a straight or branched C 8 -C 18  alkyl radical or a phenyl radical substituted by one or more straight or branched alkyl or aralkyl radicals with altogether 8 to 18 carbon atoms in the substituent or substituents, R 1  is methyl, n is a whole number from 1 to 15 and m is 0 or 1. Preferred pigment dispersions contain 10 to 50% pigment dyestuff, 5 to 50% anionic tenside and 0.1 to 5.0% of the polyether carboxylic acid salt. The dispersions may also contain an anti-drying agent and/or a non-ionic tenside e.g. an ethylene oxide adduct of nonyl phenol.
Patent GB-1097476-A (GB)
Title: Motor vehicles
Inventor: TALBOT LEONARD
IPC: F02M59/44
Filed: 1965-12-10
Abstract: 1,097,476. Controlling vehicles. FORD MOTOR CO. Ltd. Dec. 10, 1965, No. 52502/65 Heading B7H. A motor vehicle having a diesel engine is provided with a device for the injection of additional fuel to facilitate cold starting, controlled by a lever 2, which is prevented from operation when the vehicle gear shift lever is in the neutral position. A member 7 having a cam surface 7a is attached to the lever 2 and a member 6 having a complementary cam surface is connected to the gear shift lever 1 such that when the gear is shifted from neutral to any other gear the member 6 is rotated about the axis A-A. The cam surfaces are such that when the gear shift is in neutral the lever 2 can be moved from the OFF to the ON positions shown, and movement of the gear shift lever moves and holds the lever 2 in the OFF position. In a modification, the inter-engaging cam members are provided by a surface 16a upon a cylindrical member 16 attached to the gear shift lever and by a peg 17a attached to a cylindrical member 17 which has a slot within which the lever 2 fits. By movement of the gear shift lever from the neutral position, the member 16 rotates and the member 17 moves to the left so moving and holding the fuel control lever 2 in the OFF position.
Patent GB-1464387-A (GB)
Title: Electric pulse regenerator circuit
IPC: H04L7/027
Filed: 1974-09-13
Abstract: 1464387 Pulse circuits; data timing circuits PLESSEY CO Ltd 13 Sept 1974 [13 Nov 1973] 52608/73 Headings H3T and H4P In a pulse regenerator circuit responsive to signal pulses having a basic repetition rate applies at t 1 , t 2  to a resonant circuit c 1 , w 1  including a variable capacitor c 1 , the resonant circuit develops a sinusoidal signal having the basic frequency and a zero crossing detector including a long tailed pair of transistors T1, T2 responds to the sinusoidal signal to switch an output potential t 3  from a high to a low value or vice versa at the instants when the amplitude of the sinusoidal signal has a zero value so as to deliver output pulses at t 3  which recur at the basic rate. The circuit may be used as a timing device at a telecommunication regenerative repeater station where the capacitor c 1  is adjusted so that the resonant circuit c 1 , w 1  resonates at the bit rate of the digital transmission system of which the station forms a part. Received distorted pulses, after equalization and full wave rectification, are applied across the input terminals t 1 , t 2 . The signal output at t 3  is applied to a strobing gate (not shown). A source of D.C. bias at b biases both transistors T1 and T2 into conduction and the sinusoidal signal obtained at w 2  changes the potential at C between two alternative values each time when the sinusoidal signal is momentarily zero amplitude. This causes the amplifier transistor T3 to be alternately biased into and out of conduction to provide the timing pulses at t 3 . The switching circuit can be produced by a monolithic process.
Patent GB-1087089-A (GB)
Title: Sulphurised diacids and the preparation thereof
IPC: C08G63/688
Filed: 1964-12-29
Abstract: The invention comprises compounds of formula <FORM:1087089/C2/1> where M is hydrogen or an alkali metal, R is hydrogen or an alkyl, cycloalkyl, aryl or aralkyl group optionally substituted, n is an integer or fractional number from 2 to 8, m is zero or an integer when M is an alkali metal or is zero or an integer equal to 3 or more when M is hydrogen. The salts are prepared by simultaneously adding a dithiol of formula HS(CH2S)nH and an aqueous solution of a base to an aqueous or aqueous-organic solution of an alkali metal salt of a halo acid of formula RCHX(CH2)mCOOH, where X is halogen, in such a way that the reaction proceeds proportionately to the addition.  The solution of the halo acid salt may be buffered to pH 8 to 9. After the addition, the reaction mass may be kept at a temperature below 50 DEG  C. for up to 3 hours.  The free acid is obtained by acidification.
Patent GB-1142559-A (GB)
Title: Production of acetylene
IPC: C07C4/04
Filed: 1967-11-21
Abstract: 1,142,559. Acetylene; ethylene. SOLVAY & CIE. 21 Nov., 1967 [24 Nov., 1966], No. 52888/67. Heading C5E. Acetylene, and by-product ethylene, are produced by cracking hydrocarbons at 1000‹ C. or above in the presence of an aromatic hydrocarbon diluent, e.g. naphthalene, diphenyl, anthracene, and particularly benzene. The diluent may be condensed and recycled. The cracking may be carried out by partial combustion, by pilot flame cracking or by a regenerative furnace, and examples describe the cracking of propane and n-pentane.
Patent GB-1197777-A (GB)
Title: Snap-Action Electric Switches.
Inventor: PESCETTO JAMES ROBERT
IPC: H01H13/28
Filed: 1967-11-22
Abstract: 1,197,777. Retractive switches. ILLINOIS TOOL WORKS Inc. 22 Nov., 1967 [23 Nov., 1966], No. 53184/67. Heading H15. A push-button snap-action switch comprises fixed contacts 36, 38, carried respectively on terminal strips 18, 20 shaped as shown and located in a moulded plastics housing 12 by means of slots 24 and projections 26 and 28, and a change-over moving contact 60 on an arm 54 pivoted at P 2  on an L-shaped member 42, which is itself pivoted at P 1  on a terminal strip 22 located in the housing 12 by a slot 24 and projection 30. A tension spring coupled to arm 54 passes through an aperture (72, Fig. 3, not shown) in member 42 to an anchor pin insulatedly mounted in housing 12. This spring urges arm 54 into a groove 52 in member 42 and thereby urges a curved portion 48 of member 42 against an operating button 76 which straddles a notched portion of strip 18 and is further guided by lugs 90 integral wth housing 12. A cover (not shown) is fitted by complementary configured lugs thereon received in apertures 14 in housing 12. Button 76 is depressed by a further button 78, which may act via a spring lever (91, Fig. 4, not shown), and causes snap-over of contact 60 with a distinct sliding action on the fixed contacts. The travel of button 76 is limited by its abutment with strip 18 such that the line of action of the spring along arm 54 (through the pivot point P 2  does not pass below pivot point P 1  and hence an upward force is still exerted on member 42 and button 76, whereby retraction occurs as soon as button 78 is released.